title: Cross-species correspondence of spatial contrast sensitivity functions.
abstract: Spatial contrast sensitivity functions (CSFs) have been obtained for at least 9 species, including man. In the present paper, the shapes and octave band widths of these functions are compared. For most species, the shape of the CSF was an inverted-U, and the full width at half amplitude of the CSFs varied less than one octave. These similarities suggest that there is a close correspondence of the CSFs of these diverse animals; the major difference is the location of each CSF in the spatial frequency domain.
mesh_terms: D000818:Animals; D002415:Cats; D010856:Columbidae; D004193:Discrimination Learning; D006054:Goldfish; D000882:Haplorhini; D006801:Humans; D010364:Pattern Recognition, Visual; D011601:Psychophysics; D051381:Rats; D013028:Space Perception; D013045:Species Specificity; D014792:Visual Acuity